#define _CRT_SECURE_NO_WARNINGS 1
#include<iostream>
#include<vector>
using namespace std;

class Solution {
public:
    void moveZeroes(vector<int>& nums) 
    {
        for (int dest = -1, cur = 0; cur < nums.size(); cur++)
            if (nums[cur])
                swap(nums[++dest], nums[cur]);
    }
};

